Ginger Rogers Arlette Lafron Jean-Pierre Aumont Pierre de Roche Adolphe Menjou Ambassador Melville Cooper Roland Latour Mikhail Rasumny Yves Cadubert Eduardo Ciannelli Baron Ferdinand Dvorak Mona Maris Ambassador's Wife Henry Stephenson Minister Basil Rathbone Professor Aristide Adolph Faylauer Ball Guest Bess Flowers Ball Guest Wilbur Mack Ball Guest William Frambes Student Ivan Lebedeff Thief at Ball Torben Meyer Thief at Ball Richard Neill Ball Guest (uncredited)